| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2025/12 | 47,439 | -13.3% |
| 2024/12 | 54,708 | -10.0% |
| 2023/12 | 60,778 | -9.7% |
| 2022/12 | 67,334 | -16.6% |
| 2021/12 | 80,741 | -18.1% |
| 2020/12 | 98,543 | -20.1% |
| 2019/12 | 123,319 | -0.2% |
| 2018/12 | 123,530 | +14.7% |
| 2017/12 | 107,667 | -9.3% |
| 2016/12 | 118,720 | -9.6% |
| 2015/12 | 131,257 | +5.2% |
| 2014/12 | 124,776 | -55.1% |
| 2013/12 | 278,054 | - |